User @Schnitzelmaker is in fact correct. The best way to get infinite food is to do the following…
Do not build a food tile and allow workers to collect the 70 food you can store.
Build one or two food tiles and fill them up
Search for the value 10
Upgrade those food tiles (you will need to make surrounding food tiles) and fill to capacity.
Search existing hits for the value 40
Change hits to 20000
Dominate your opponent!
PS. This also changes the capacity of the food tile also making for some interesting graphics later in the game.
PPS. If you have too many hits empty the food tile again and search for zeros.